What is the ruling on buying and selling electricity shares through Al-Rajhi Bank, knowing that the bank takes fees for this, and given that the buying and selling occur without the purchaser seeing the shares?

We previously discussed purchasing shares through Al-Rajhi Company and authorizing them for buying and selling. The questioner's statement, "and he deposits the value into my account and takes interest on it," has three possibilities: It could mean the share profits, which is permissible; or the company's commission, which is also permissible; or usurious interest, which is absolutely forbidden, and this is unlikely.